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The patent EP3294548 was granted to Saint Gobain on May 25, 2022. The application was filed on May 10, 2016 under application number EP16723070A. The patent is currently recorded with a legal status of "Granted And Under Opposition".

Patent oppositions filed by competitors challenge the validity of a granted patent. These oppositions are typically based on claims of prior art, lack of novelty, or non-obviousness. They are a key part of the process for determining a patent's strength and enforceability.
| Company | Opposition Date | Representative | Opposition Status |
|---|---|---|---|
| PILKINGTON GROUP | Feb 27, 2023 | MARSH | ADMISSIBLE |
| AGC GLASS EUROPE | Feb 22, 2023 | MULLER BORE & PARTNER PATENTANWALTE PARTG MBB | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | DE19604397 |
| DESCRIPTION | DE3930414 |
| DESCRIPTION | DE4232554 |
| DESCRIPTION | EP0877006 |
| DESCRIPTION | EP1047644 |
| DESCRIPTION | EP1218307 |
| DESCRIPTION | EP1917222 |
| DESCRIPTION | EP2247549 |
| DESCRIPTION | EP2639032 |
| DESCRIPTION | US2011146172 |
| DESCRIPTION | WO2013131667 |
| EXAMINATION | DE202013006875U |
| EXAMINATION | DE69903668T |
| EXAMINATION | TW201342141 |
| EXAMINATION | US2014154434 |
| EXAMINATION | WO2014127868 |
| INTERNATIONAL-SEARCH-REPORT | EP0434656 |
| INTERNATIONAL-SEARCH-REPORT | EP0515847 |
| INTERNATIONAL-SEARCH-REPORT | EP0576179 |
| INTERNATIONAL-SEARCH-REPORT | EP1281613 |
| INTERNATIONAL-SEARCH-REPORT | EP2639032 |
| INTERNATIONAL-SEARCH-REPORT | US5492951 |
| INTERNATIONAL-SEARCH-REPORT | US6309755 |
| INTERNATIONAL-SEARCH-REPORT | WO2013131667 |
| OPPOSITION | EP0421833 |
| OPPOSITION | EP0576179 |
| OPPOSITION | EP2639032 |
| OPPOSITION | FR2553083 |
| OPPOSITION | JPH02227226 |
| OPPOSITION | JPS6081047 |
| OPPOSITION | US4581276 |
| OPPOSITION | US5391416 |
| OPPOSITION | US7817327 |
| OPPOSITION | WO2008155516 |
| OPPOSITION | WO2013189794 |
| OPPOSITION | WO2014127868 |
| OPPOSITION | WO9728947 |
| OTHER | EP0576179 |
| OTHER | EP3294548 |
| OTHER | FR2553083 |
| OTHER | US4581276 |
| OTHER | US5391416 |
| OTHER | US7817327 |
| OTHER | WO2008155516 |
| OTHER | WO2013189794 |
| OTHER | WO2014127868 |
The dossier documents provide a comprehensive record of the patent's prosecution history - including filings, correspondence, and decisions made by patent offices - and are crucial for understanding the patent's legal journey and any challenges it may have faced during examination.
Date
Description
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(Electronic) Receipt
Appeal
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Reply to appeal
Appeal
Oct 10, 2025
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(Electronic) Receipt
Appeal
Jun 6, 2025
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
Apr 3, 2025
(Electronic) Receipt
Appeal
Apr 3, 2025
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Notice of appeal
Appeal
Apr 3, 2025
Notice of appeal
Appeal
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OPPO
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OPPO
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Apr 29, 2022
Decision to grant a European patent
Search/Exam
Apr 12, 2022
(Electronic) Receipt
Search/Exam
Apr 12, 2022
English translation of the claims
Search/Exam
Apr 12, 2022
Filing of the translations of the claims
Search/Exam
Apr 12, 2022
French translation of claims
Search/Exam
Mar 16, 2022
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Intention to grant (signatures)
Search/Exam
Mar 16, 2022
Text intended for grant (clean copy)
Search/Exam
Mar 16, 2022
Jan 26, 2022
Document concerning representation
Search/Exam
Nov 18, 2021
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Nov 10, 2021
Observations by third parties
Search/Exam
Nov 10, 2021
Patent document filed by a Third party
Search/Exam
Oct 29, 2021
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Observations by third parties
Search/Exam
Oct 20, 2021
Patent document filed by a Third party
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Oct 20, 2021
Patent document filed by a Third party
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Oct 20, 2021
Patent document filed by a Third party
Search/Exam
Oct 20, 2021
Patent document filed by a Third party
Search/Exam
Jul 26, 2021
(Electronic) Receipt
Search/Exam
Jul 26, 2021
Amended claims with annotations
Search/Exam
Jul 26, 2021
Amended description with annotations
Search/Exam
Jul 26, 2021
Claims
Search/Exam
Jul 26, 2021
Description
Search/Exam
Jul 26, 2021
Letter accompanying subsequently filed items
Search/Exam
Jul 26, 2021
Jun 17, 2021
Annex to the communication
Search/Exam
Jun 17, 2021
Communication from the Examining Division
Search/Exam
Feb 1, 2021
(Electronic) Receipt
Search/Exam
Feb 1, 2021
Amended claims with annotations
Search/Exam
Feb 1, 2021
Amended description with annotations
Search/Exam
Feb 1, 2021
Claims
Search/Exam
Feb 1, 2021
Description
Search/Exam
Feb 1, 2021
Letter accompanying subsequently filed items
Search/Exam
Feb 1, 2021
Oct 28, 2020
Annex to a communication
Search/Exam
Oct 28, 2020
Annex to the communication
Search/Exam
Oct 28, 2020
Communication from the Examining Division
Search/Exam
Oct 16, 2020
Examination started
Search/Exam
May 11, 2020
May 5, 2020
Letter accompanying subsequently filed items
Search/Exam
May 5, 2020
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May 28, 2018
(Electronic) Receipt
Search/Exam
May 28, 2018
Letter accompanying subsequently filed items
Search/Exam
May 28, 2018
Reply to Written Opinion prepared by the EPO
Search/Exam
Feb 21, 2018
Dec 22, 2017
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Communication to designated inventor
Search/Exam
Dec 20, 2017
Communication to designated inventor
Search/Exam
Dec 15, 2017
Priority search results copy provided by EPO
Search/Exam
Dec 6, 2017
Sep 29, 2017
Information on entry into European phase
Search/Exam
Sep 28, 2017
(Electronic) Receipt
Search/Exam
Sep 28, 2017
Request for entry into the European phase
Search/Exam
Dec 12, 2016
Nov 24, 2016
Copy of the international search report
Search/Exam
Nov 24, 2016
Published international application - A1
Search/Exam
Jul 20, 2016
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May 25, 2016
May 10, 2016
(Electronic) Receipt
PCTRO
May 10, 2016
Abstract
PCTRO
May 10, 2016
Claims
PCTRO
May 10, 2016
Description
PCTRO
May 10, 2016
May 10, 2016
Drawings
PCTRO
May 10, 2016
May 10, 2016